CN117615441A

CN117615441A - Uplink power control method and terminal equipment

Info

Publication number: CN117615441A
Application number: CN202311578103.1A
Authority: CN
Inventors: 陈文洪; 方昀
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2024-02-27
Also published as: CN116548024A; US20230337141A1; US11856522B2; EP4262293A4; EP4262293A1; WO2022141075A1

Abstract

The application discloses an uplink power control method, an uplink power control device, a terminal and a storage medium, and relates to the technical field of communication. The method comprises the following steps: the terminal equipment determines a plurality of groups of open loop power control parameters which are respectively used for different repeated transmission of the same uplink signal; under the condition that the target open loop power control parameter is reconfigured, setting zero the target power control adjustment state associated with the power control adjustment state index corresponding to the target open loop power control parameter; wherein the target open loop power control parameter is any one of the plurality of sets of open loop power control parameters. The method and the device can ensure that the reconfiguration of the open loop power control parameter aiming at a certain repeated transmission only affects the closed loop power control of the repeated transmission, does not affect the closed loop power control of other repeated transmissions, and realizes that the uplink repeated transmission of different TRPs can carry out independent power control.

Description

Uplink power control method and terminal equipment

The present application is a divisional application of PCT international patent application PCT/CN2020/140946, which is applied for 12 months 29 days 2020, to chinese patent application number 202080107448.7, entitled "uplink power control method, apparatus, terminal, and storage medium", which enters the chinese national stage.

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to an uplink power control method and terminal equipment.

Background

In order to perform more accurate uplink power control in FR1 (Frequency Range 1), the repeated Transmission to different TRPs (Transmission/Reception points) may use independent power control parameters, so that the Transmission power better matches the channel of the corresponding TRP.

At this time, how to reset the power control adjustment state while guaranteeing two TRP independent closed-loop power control when a reconfiguration occurs to a certain open-loop power control parameter is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides an uplink power control method, an uplink power control device, a terminal and a storage medium. The technical scheme is as follows:

according to an aspect of the embodiments of the present application, there is provided an uplink power control method, applied to a terminal device, including:

determining a plurality of groups of open loop power control parameters, wherein the plurality of groups of open loop power control parameters are respectively used for different repeated transmission of the same uplink signal;

under the condition that the target open loop power control parameter is reconfigured, setting zero the target power control adjustment state associated with the power control adjustment state index corresponding to the target open loop power control parameter;

Wherein the target open loop power control parameter is any one of the plurality of sets of open loop power control parameters.

According to an aspect of the embodiments of the present application, there is provided an uplink power control apparatus, including:

the parameter determining module is used for determining a plurality of groups of open loop power control parameters which are respectively used for different repeated transmission of the same uplink signal;

a state resetting module, configured to, in case of reconfiguration of a target open loop power control parameter, zero a target power control adjustment state associated with a power control adjustment state index corresponding to the target open loop power control parameter;

According to an aspect of the embodiments of the present application, there is provided a terminal device, including a processor;

the processor is used for determining a plurality of groups of open loop power control parameters which are respectively used for different repeated transmission of the same uplink signal;

the processor is further configured to zero a target power control adjustment state associated with a power control adjustment state index corresponding to a target open loop power control parameter under a condition that the target open loop power control parameter is reconfigured;

According to an aspect of the embodiments of the present application, there is provided a computer readable storage medium having stored therein a computer program for execution by a processor of a terminal device to implement the above-mentioned uplink power control method.

According to an aspect of the embodiments of the present application, a chip is provided, where the chip includes a programmable logic circuit and/or program instructions, and is configured to implement the uplink power control method described above when the chip is run on a terminal device.

According to an aspect of embodiments of the present application, there is provided a computer program product, which, when run on a processor of a terminal device, causes the terminal device to perform the above-described uplink power control method.

The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:

under the condition that the terminal equipment is configured with a plurality of groups (such as two groups or more than two groups) of open loop power control parameters for uplink retransmission, when one group of parameters are reconfigured, the terminal equipment only carries out zero setting on the power control adjustment state associated with a specific power control adjustment state index corresponding to the group of parameters, so that on one hand, the independent power control parameters of uplink retransmission configuration sent to different TRPs can be supported, on the other hand, the reconfiguration of the open loop power control parameters for a certain retransmission can be ensured to only influence the closed loop power control of the retransmission, the closed loop power control of other retransmission is not influenced, and the independent power control of uplink retransmission of different TRPs can be realized.

Drawings

FIG. 1 is a schematic diagram of a network architecture provided by one embodiment of the present application;

fig. 2 illustrates a schematic diagram of a slot-based PUSCH repetition transmission;

fig. 3 schematically illustrates PUSCH repetition transmission based on OFDM symbols;

fig. 4 illustrates a schematic diagram of a multi-TRP/Panel based PUSCH retransmission;

fig. 5 illustrates a schematic diagram of slot-based PUCCH repetition transmission;

fig. 6 exemplarily shows a schematic diagram of a multi-TRP/Panel based PUCCH repeated transmission;

fig. 7 is a flowchart of an uplink power control method according to an embodiment of the present application;

fig. 8 is a flowchart of an uplink power control method according to another embodiment of the present application;

fig. 9 shows a schematic diagram of power control for PUSCH repetition transmission based on multiple TRPs;

fig. 10 is a flowchart of an uplink power control method according to another embodiment of the present application;

fig. 11 shows a schematic diagram of power control of PUCCH repeated transmission based on multi-TRP;

fig. 12 is a block diagram of an uplink power control device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.

Referring to fig. 1, a schematic diagram of a network architecture according to an embodiment of the present application is shown. The network architecture 100 may include: terminal device 10, access network device 20, and core network device 30.

The terminal device 10 may refer to a UE (User Equipment), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a wireless communication device, a User agent, or a User Equipment. Alternatively, the terminal device 10 may also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol ) phone, a WLL (Wireless Local Loop, wireless local loop) station, a PDA (Personal digital Assistant), a handheld device with a wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in 5GS (5 th Generation System, fifth generation mobile communication system), or a terminal device in a future evolved PLMN (Pub 1ic Land Mobi1e Network), or the like, which the embodiment of the present application is not limited. For convenience of description, the above-mentioned devices are collectively referred to as terminal devices. The number of terminal devices 10 is typically plural, and one or more terminal devices 10 may be distributed within a cell managed by each access network device 20.

The access network device 20 is a device deployed in the access network to provide wireless communication functionality for the terminal device 10. The access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. The names of access network device-capable devices may vary in systems employing different Radio access technologies, for example in 5G NR (New Radio) systems, called gnob or gNB. As communication technology evolves, the name "access network device" may change. For convenience of description, in the embodiment of the present application, the above-mentioned devices for providing the terminal device 10 with the wireless communication function are collectively referred to as an access network device. Alternatively, a communication relationship may be established between the terminal device 10 and the core network device 30 via the access network device 20. Illustratively, in an LTE (Long Term Evolution ) system, the access network device 20 may be EUTRAN (Evolved Universal Terrestrial Radio Access Network, evolved universal terrestrial radio network) or one or more enodebs in EUTRAN; in a 5G NR system, access network device 20 may be a RAN (Radio Access Network ) or one or more gnbs in the RAN. In the embodiments of the present application, the network device refers to the access network device 20 unless specifically described.

The core network device 30 mainly functions to provide user connection, management of users, and bearer completion of services, and to provide an interface to an external network as a bearer network. For example, core network devices in the 5G NR system may include AMF (Access and Mobility Management Function ) entities, UPF (User Plane Function, user plane function) entities, SMF (Session Management Function ) entities, and the like.

In one example, the access network device 20 and the core network device 30 communicate with each other via some air interface technology, such as an NG interface in a 5G NR system. The access network device 20 and the terminal device 10 communicate with each other via some kind of air interface technology, e.g. Uu interface.

The "5G NR system" in the embodiments of the present application may also be referred to as a 5G system or an NR system, but a person skilled in the art may understand the meaning thereof. The technical scheme described in the embodiment of the application can be applied to a 5G NR system and also can be applied to a subsequent evolution system of the 5G NR system.

In the following, some related techniques related to the present application will be described.

1. Uplink repeated transmission

In order to improve the transmission reliability of PUSCH (Physical Uplink Shared Channel ), NR introduces repeated transmission of PUSCH, that is, PUSCH carrying the same data is transmitted multiple times through different time-frequency resources, antennas, redundancy versions, etc., so as to obtain diversity gain and reduce the false detection probability (i.e., BLER (Block Error Rate/Block Error Rate)). Specifically, the repeated transmission may be performed in different time slots (as shown in fig. 2), may be performed in different OFDM (Orthogonal Frequency Division Multiplexing ) symbols (as shown in fig. 3, in a time slot or across time slots), or may be performed on multiple antenna panels (panels) (as shown in fig. 4). For multi-slot or multi-symbol repeated transmission, one DCI (Downlink Control Information ) may schedule multiple PUSCHs to transmit on consecutive multiple slots or multiple OFDM symbols, carrying the same data but employing different redundancy versions. At this time, the receiving ends of the different retransmission may be the same TRP or different TRP. For multi-Panel repetition, PUSCHs carrying the same data are simultaneously and respectively transmitted on different Panels, and a receiving end can be the same TRP or different TRPs. In PUSCH repetition transmission, different repetition transmissions may use different beams, different precoding matrices, different redundancy versions, different power control parameters, and different frequency domain resources.

Similar to PUSCH, PUCCH (Physical Uplink Control Channel ) may also support repeated transmission, i.e. PUCCH carrying the same uplink control information is transmitted multiple times through different resources or antennas, thereby obtaining diversity gain and reducing false detection probability (BLER). Specifically, the repeated transmission may be performed in a plurality of time slots (as shown in fig. 5) or may be performed on a plurality of panels (as shown in fig. 6). For multi-slot repetition, the network device configures a corresponding repetition number N (nrofSlots) for each PUCCH format through RRC (Radio Resource Control) signaling, and after receiving the signaling, the terminal transmits the same uplink control information using the same physical resource in N consecutive slots. Since PUCCHs in different slots are addressed to different TRPs, the transmit beam and power control parameters (e.g., path loss measurement reference signals) used are also independently configurable. For example, N spatial related information PUCCH-spatial related or N TCI (Transmission Configuration Indicator, transmission configuration indication) states may be indicated for one PUCCH resource, and the transmission beam and the power control parameter of the PUCCH may be obtained from the N spatial related information PUCCH-spatial related or N TCI states. Where N is the number of cooperative TRP or Panel, n=2 for the case of two TRP, as shown in fig. 6.

2. Uplink PUSCH power control

The current PUSCH transmission power can be calculated by the following formula:

wherein P is _CMAX,f,c (i) Is the maximum transmit power on the terminal's current carrier, i is the index of one PUSCH transmission, j is the open loop power control index (including the target power P _{O_PUSCH,b,f,c} (j) And a path loss factor alpha _b,f,c (j))；q _d Is an index of a reference signal for performing path loss measurement, for obtaining a path loss value PL _b,f,c (q _d ) Is also an open loop power control parameter; f (f) _b,f,c (i, l) is a power control adjustment state, where l is an index of the power control adjustment state. The terminal determines the closed loop power adjustment factor according to a TPC (Transmit Power Control ) command field sent by the network side, where the TPC command field may be carried by DCI for scheduling the PUSCH in the UE search space, or may be carried by DCI format 2_2 for carrying the TPC command field in the common search space. The power control adjustment states corresponding to the different power control adjustment state indexes are independently calculated, so that different PUSCH transmission powers can be obtained.

In NR, the terminal determines a transmission beam of the scheduled PUSCH based on the SRI (Sounding Reference Signal Resource Indicator, SRS resource indication) in the DCI, and also determines a power control parameter for the PUSCH based on the SRI. Specifically, the network side configures a plurality of SRI-PUSCH-PowerControl parameter domains in advance through RRC signaling, each parameter domain corresponds to an SRI value, and the parameter domain includes a set of PUSCH power control parameter configurations (e.g., j, q _d L). When the values of the SRI indications are different, the power control parameter configuration in the corresponding parameter domain (SRI-PUSCH-PowerControl) is adopted to determine the transmission power of the currently scheduled PUSCH. When the open loop power control parameter corresponding to the open loop power control index contained in one SRI-PUSCH-PowerControl is reconfigured, the terminal needs to reset the power control adjustment state corresponding to the power control adjustment state index contained in the SRI-PUSCH-PowerControl (i.e. set the accumulated value to zero), and the power control adjustment states corresponding to other power control adjustment state indexes are not affected. If the SRI-PUSCH-PowerControl parameter domain is not configured by the higher layer signaling, only the target power P is needed _{O_PUSCH,b,f,c} (j) The terminal resets the power control adjustment state corresponding to l=0 (i.e., sets the accumulated value to zero) upon reconfiguration.

3. Uplink PUCCH power control

The transmit power of the current PUCCH may be calculated by the following formula:

wherein P is _CMAX,f,c (i) The maximum sending power of the terminal on the current carrier wave, i is the index of one PUCCH transmission; q _u Is the target power P _{O_PUCCH,b,f,c} Index of (2); q _d Is an index of a reference signal for performing path loss measurement and is used for obtaining a path loss value; g _b,f,c (i, l) is a power control adjustment state, where l is an index of the power control adjustment state. The terminal determines the closed loop power adjustment factor according to a TPC command field sent by the network side, where the TPC command field may be carried by DCI for scheduling a PDSCH corresponding to the PUCCH in the UE search space, or may be carried by DCI format 2_2 for carrying the TPC command field in the common search space. The power control adjustment states corresponding to the different power control adjustment state indexes are calculated independently, so that different PUCCH transmission powers can be obtained.

In NR, the terminal determines a transmit beam and a power control parameter of a scheduled PUCCH based on spatial related information (PUCCH-spatial relation info) configured by higher layer signaling. Each spatial correlation information contains a set of power control parameters (including the aforementioned parameters) of the PUCCH, and the target power index q contained in one spatial correlation information _u Corresponding target power P _{O_PUCCH,b,f,c} (q _u ) After the reconfiguration occurs, the terminal needs to reset the power control adjustment state corresponding to the power control adjustment state index contained in the space related information (namely, the accumulated value is set to zero), and the power control adjustment states corresponding to other power control adjustment state indexes are not affected. If the higher layer signaling does not configure the space related information, only the target power P _{O_PUCCH,b,f,c} (q _u ) The terminal resets the power control adjustment state corresponding to l=0 (i.e., sets the accumulated value to zero) upon reconfiguration.

For the repeated transmission of PUSCH and PUCCH on FR2 (Frequency Range 2), different repeated transmissions may be sent to different TRPs, and at this time, the network device (e.g. base station) may configure different transmission beams and power control parameters for different repeated transmissions through SRI-PUSCH-PowerControl parameter domain or PUCCH spatial related information. For the repeated transmission of PUSCH and PUCCH on FR1, the network device does not need to configure SRI-PUSCH-PowerControl parameter domain and PUCCH spatial related information, but only configures a set of open loop power control parameters for PUSCH and PUCCH respectively through higher layer signaling, and all repeated transmissions employ the set of open loop power control parameters (whether to issue different TRPs or not). Meanwhile, all PUSCH and PUCCH repeated transmissions use the power control adjustment state corresponding to the power control adjustment state index l=0 to perform closed loop power control, and when the open loop power control parameter is reconfigured, the terminal will set the power control adjustment state corresponding to l=0 to zero.

In order to perform more accurate uplink power control in FR1, the repeated transmission to different TRPs may employ independent power control parameters, so that the transmit power better matches the channel of the corresponding TRP. At this time, how to reset the power control adjustment state while guaranteeing two TRP independent closed-loop power control when a reconfiguration occurs to a certain open-loop power control parameter is a problem to be solved.

Based on this, the embodiment of the application provides an uplink power control method, where in the case that a terminal device is configured with multiple groups (for example, two groups or more than two groups) of open loop power control parameters for uplink retransmission, when one group of parameters is reconfigured, the terminal device only sets zero the power control adjustment state associated with a specific power control adjustment state index corresponding to the group of parameters, so that on one hand, it can support uplink retransmission configuration independent power control parameters sent to different TRPs, and on the other hand, it can also be ensured that reconfiguration of the open loop power control parameters for a certain retransmission only affects closed loop power control of the retransmission, does not affect closed loop power control of other retransmissions, and uplink retransmission of different TRPs can perform independent power control.

The following describes the technical scheme of the application through several embodiments.

Referring to fig. 7, a flowchart of an uplink power control method according to an embodiment of the present application is shown. The method can be applied to the terminal equipment of the network architecture shown in fig. 1. The method may include the following steps (710-720):

in step 710, a plurality of sets of open loop power control parameters are determined, the plurality of sets of open loop power control parameters being used for different repeated transmissions of a same uplink signal, respectively.

Optionally, the terminal device determines two or more sets of open loop power control parameters.

Optionally, the multiple sets of open loop power control parameters are used for repeated transmission of the uplink signal on different time domain resources, or repeated transmission on different frequency domain resources, or repeated transmission on different antenna panels, respectively. The time domain resource may be a frame, a subframe, a slot, a sub-slot, an OFDM (Orthogonal Frequency Division Multiplexing ) symbol, or the like, and the frequency domain resource may be a subcarrier or other frequency domain unit.

Alternatively, different repetition transmissions employ different precoding vectors or beamforming weights. In this way, the repeated transmission sent to different TRPs can be matched with the channel information between the corresponding TRPs through different precoding vectors or beamforming weights, so that better uplink transmission performance can be obtained.

Alternatively, the path loss measurement reference signals employed by different retransmissions are from different TRPs, thereby indicating that different retransmissions are sent to different TRPs. In the implementation process, whether the reference signal is from different TRPs is invisible to the terminal device, and the reference signals of different TRPs can be represented by different TCI states adopted by the reference signals.

Optionally, the uplink signal is PUSCH or PUCCH.

Optionally, the open loop power control parameter includes a target power and/or a path loss factor.

Optionally, the plurality of sets of open loop power control parameters are configured by the network device to the terminal device. For example, the network device configures the terminal device with multiple sets of open loop power control parameters through higher layer signaling.

Step 720, under the condition that the target open loop power control parameter is reconfigured, setting zero the target power control adjustment state associated with the power control adjustment state index corresponding to the target open loop power control parameter; wherein the target open loop power control parameter is any one of the plurality of sets of open loop power control parameters.

Optionally, under the condition that the target open loop power control parameter is reconfigured, the terminal equipment only sets zero the target power control adjustment state associated with the power control adjustment state index corresponding to the target open loop power control parameter. The power control adjustment state associated with the other power control adjustment state index is not affected, i.e., zero setting is not performed. For example, the network device configures two power control adjustment states for the terminal device, corresponding to the power control adjustment state indexes 0 and 1 respectively, if the value of the power control adjustment state index corresponding to the target open loop power control parameter is 0, only the target power control adjustment state associated with the index 0 is set to zero, and the power control adjustment state associated with the index 1 is not affected, thereby realizing independent closed loop power control of different TRPs.

Optionally, the target open loop power control parameter and the target power control adjustment state are for the same repeated transmission.

Optionally, the terminal device determines a power control adjustment state used for repeated transmission employing the target open loop power control parameter as the target power control adjustment state. For example, the 1 st and 3 rd transmissions of the uplink signal employ the open loop power control parameter, and the index of the power control adjustment state used by the 1 st and 3 rd transmissions is 0, the terminal device determines the power control adjustment state with the index of 0 as the target power control adjustment state, and sets it to zero when the target open loop power control parameter is reconfigured.

In an exemplary embodiment, in the case where the uplink signal is PUSCH, the target open loop power control parameter is an i-th set of open loop power control parameters among the above-mentioned multiple sets of open loop power control parameters configured by the higher layer signaling, where i is a positive integer. Correspondingly, the power control adjustment state index corresponding to the target open loop power control parameter is the ith power control adjustment state index configured by the high-layer signaling and used for PUSCH repeated transmission; or the value of the power control adjustment state index corresponding to the target open loop power control parameter is i-1.

For example, the plurality of sets of open loop power control parameters includes a first open loop power control parameter and a second open loop power control parameter, the first open loop power control parameter and the second open loop power control parameter being two different sets of open loop power control parameters. Under the condition that the first open loop power control parameter is reconfigured, the terminal equipment only sets the power control adjustment state associated with the first power control adjustment state index to zero. The first open loop power control parameter may be a first target power or a path loss factor of the higher layer signaling configuration, where the first power control adjustment state index is a first power control adjustment state index of the higher layer signaling configuration for PUSCH repeated transmission, or a value of the first power control adjustment state index is 0. And under the condition that the second open-loop power control parameter is reconfigured, the terminal equipment only sets the power control adjustment state associated with the second power control adjustment state index to zero. The second open loop power control parameter may be a second target power or a path loss factor of the higher layer signaling configuration, where the second power control adjustment state index is a second power control adjustment state index of the higher layer signaling configuration for PUSCH repeated transmission, or the value of the second power control adjustment state index is 1.

In an exemplary embodiment, in case that the uplink signal is PUCCH, the target open loop power control parameter is the lowest ID (Identity) target power, e.g., 0 ID, among target powers for PUCCH configured by higher layer signaling. Correspondingly, the power control adjustment state index corresponding to the target open loop power control parameter is the first power control adjustment state index configured by the high-layer signaling and used for PUCCH repeated transmission; or, the value of the power control adjustment state index corresponding to the target open loop power control parameter is 0.

For example, the plurality of sets of open loop power control parameters includes a third open loop power control parameter and a fourth open loop power control parameter, the third open loop power control parameter and the fourth open loop power control parameter being two different sets of open loop power control parameters. And under the condition that the third open-loop power control parameter is reconfigured, the terminal equipment only sets the power control adjustment state associated with the third power control adjustment state index to zero. The third open loop power control parameter may be the target power with the lowest ID in the target power of the higher layer signaling configuration, where the third power control adjustment state index is the first power control adjustment state index of the higher layer signaling configuration for PUCCH repeated transmission, or the value of the third power control adjustment state index is 0.

In an exemplary embodiment, in case that the uplink signal is PUCCH, the target open loop power control parameter is the target power ID next lowest or the target power ID highest among target powers for PUCCH configured by higher layer signaling. Correspondingly, the power control adjustment state index corresponding to the target open loop power control parameter is the second power control adjustment state index of the high-layer signaling configuration for PUCCH repeated transmission; or, the value of the power control adjustment state index corresponding to the target open loop power control parameter is 1.

For example, the plurality of sets of open loop power control parameters includes a third open loop power control parameter and a fourth open loop power control parameter, the third open loop power control parameter and the fourth open loop power control parameter being two different sets of open loop power control parameters. Under the condition that the fourth loop power control parameter is reconfigured, the terminal equipment only sets the power control adjustment state associated with the fourth power control adjustment state index to zero. The fourth loop power control parameter may be the target power with the ID next lowest or the target power with the ID highest among the target powers of the higher layer signaling configuration, where the fourth power control adjustment state index is the second power control adjustment state index of the higher layer signaling configuration for PUCCH repeated transmission, or the value of the fourth power control adjustment state index is 1.

In an exemplary embodiment, the target open loop power control parameter is a set of open loop power control parameters selected by the terminal device from among a plurality of sets of open loop power control parameters and reported to the network device. Correspondingly, the power control adjustment state index corresponding to the target open loop power control parameter is a power control adjustment state index corresponding to the target open loop power control parameter, which is selected from a plurality of power control adjustment state indexes by the terminal equipment and reported to the network equipment.

For example, the plurality of sets of open loop power control parameters includes a fifth open loop power control parameter, where the fifth open loop power control parameter is a set of open loop power control parameters selected by the terminal device from the plurality of sets of open loop power control parameters and reported to the network device. And when the fifth open loop power control parameter is reconfigured, the terminal equipment only sets the power control adjustment state associated with the fifth power control adjustment state index to zero. The fifth open loop power control parameter may be a target power or a path loss factor selected by the terminal device from a plurality of target powers or path loss factors configured by the higher layer signaling and reported to the network device, and the fifth power control adjustment state index is a power control adjustment state index corresponding to the fifth open loop power control parameter selected by the terminal device from a plurality of power control adjustment state indexes and reported to the network device.

Optionally, the above method is performed without the network device indicating the beam related configuration to the terminal device. For example, the beam-related configuration may be SRI-PUSCH-PowerControl or SRI for PUSCH, or may be spatial related information for PUCCH.

It should be noted that, the power control adjustment state mentioned in the present application may also be referred to as a closed-loop power control adjustment state, and correspondingly, the power control adjustment state index may also be referred to as a closed-loop power control adjustment state index. That is, when the target open loop power control parameter is reconfigured, the closed loop power control adjustment state associated with the closed loop power control adjustment state index corresponding to the target open loop power control parameter is reset (i.e. zeroed), so that it is ensured that the reconfiguration of the open loop power control parameter for a certain repetition transmission only affects the closed loop power control of the repetition transmission, and does not affect the closed loop power control of other repetition transmissions.

In summary, in the technical solution provided in the embodiments of the present application, when a terminal device is configured with multiple sets (e.g., two sets or more) of open loop power control parameters for uplink retransmission, when one set of parameters is reconfigured, the terminal device only performs zero setting on a power control adjustment state associated with a specific one of the power control adjustment state indexes corresponding to the set of parameters, so that on one hand, uplink retransmission configuration independent power control parameters sent to different TRPs can be supported, and on the other hand, it can be ensured that reconfiguration of open loop power control parameters for a certain retransmission only affects closed loop power control of the retransmission, does not affect closed loop power control of other retransmissions, and uplink retransmission of different TRPs can perform independent power control.

Referring to fig. 8, a flowchart of an uplink power control method according to another embodiment of the present application is shown. The method can be applied to the terminal equipment of the network architecture shown in fig. 1. The method may include the following steps (810-820):

in step 810, multiple sets of open loop power control parameters are determined, the multiple sets of open loop power control parameters being used for different repeated transmissions of the same PUSCH, respectively, the open loop power control parameters including a target power and/or a path loss factor.

In one example, multiple sets of open loop power control parameters are used for repeated transmissions of PUSCH on different time domain resources, respectively. For example, one set of open loop power control parameters is used for repeated transmissions on a portion of the time slots, and another set of open loop power control parameters is used for repeated transmissions on other time slots; alternatively, one set of open loop power control parameters is used for repeated transmissions on a portion of the OFDM symbols and another set of open loop power control parameters is used for repeated transmissions on another portion of the OFDM symbols.

In another example, multiple sets of open loop power control parameters are used for repeated transmissions of PUSCH on different frequency domain resources, respectively. For example, one set of open loop power control parameters is used for repeated transmissions on a part of a PRB (Physical Resource Block ) or subband, and another set of open loop power control parameters is used for repeated transmissions on another part of the PRB or subband.

In another example, multiple sets of open loop power control parameters are used for repeated transmissions of PUSCH on different Panel, respectively. For example, one set of open loop power control parameters is used for repeated transmissions on one Panel and another set of open loop power control parameters is used for repeated transmissions on another Panel.

Alternatively, different repetition transmissions employ different precoding vectors or beamforming weights. For example, PUSCH repetition transmissions with a first set of open loop power control parameters use different precoding vectors or beamforming weights than PUSCH repetition transmissions with a second set of open loop power control parameters. In this way, the repeated transmission sent to different TRPs can be matched with the channel information between the corresponding TRPs through different precoding vectors or beamforming weights, so that better uplink transmission performance can be obtained.

Alternatively, the path loss measurement reference signals employed by different retransmissions are from different TRPs, thereby indicating that different retransmissions are sent to different TRPs. For example, in the case where the path loss measurement Reference Signal is a CSI-RS (Channel State Information-Reference Signal), the path loss measurement Reference signals employed by different repeated transmissions are from different CSI-RS sets.

In an exemplary embodiment, the network device pre-configures a set of open loop power control parameters for PUSCH through higher layer signaling (e.g., higher layer parameters p 0-AlphaSets). For example, the high-level parameters P0-alpha set include one or more P0-PUSCH-alpha sets, each P0-PUSCH-alpha set includes a target power configuration (P0) and a path loss factor configuration (alpha), which are respectively used for obtaining the target power P _{O_PUSCH,b,f,c} (j) And a path loss factor alpha _b,f,c (j) A. The invention relates to a method for producing a fibre-reinforced plastic composite The one or more P0-PUSCH-alpha set packetsThe open loop power control parameters for determining the transmission power of different repeated transmissions of the same PUSCH are included. Among them, different P0-PUSCH-AlphaSet may be used for different purposes, for example, PUSCH for dynamic scheduling, and PUSCH for prescheduling (configured grant). Specifically, the two open loop power control parameters for PUSCH retransmission are respectively a first target power and a second target power configured by higher layer signaling, or a first path loss factor and a second path loss factor configured by higher layer signaling.

For example, for dynamically scheduled PUSCH, the two open loop power control parameters are P0 or alpha contained in the first P0-PUSCH-alpha set and P0 or alpha contained in the second P0-PUSCH-alpha set configured in the higher layer parameters P0-alpha set, respectively.

For example, for a pre-scheduled (configured grant) PUSCH, the two open loop power control parameters are P0 or alpha contained in P0-PUSCH-AlphaSet respectively corresponding to two P0-PUSCH-AlphaSetId contained in a pre-scheduling configuration (configured grant).

Based on the configuration mode, independent power control parameters can be configured for uplink repeated transmission sent to different TRPs, so that the channel between the power control matching of the uplink signal and the corresponding receiving TRP can achieve more accurate uplink power control.

Step 820, under the condition that the reconfiguration occurs to the target open loop power control parameter, setting zero the target power control adjustment state associated with the power control adjustment state index corresponding to the target open loop power control parameter; wherein the target open loop power control parameter is any one of the plurality of sets of open loop power control parameters.

Optionally, under the condition that the target open loop power control parameter is reconfigured, the terminal equipment only sets zero the target power control adjustment state associated with the power control adjustment state index corresponding to the target open loop power control parameter. And, among the multiple groups of open loop power control parameters, the power control adjustment states associated with the power control adjustment state indexes corresponding to the open loop power control parameters except the target open loop power control parameter are not affected, i.e. zero setting is not performed.

In an exemplary embodiment, the plurality of sets of open loop power control parameters includes a first open loop power control parameter and a second open loop power control parameter, the first open loop power control parameter and the second open loop power control parameter being two different sets of open loop power control parameters. The first open loop power control parameter is a first target power or a path loss factor configured by the higher layer signaling, for example, P0 or alpha contained in a first P0-PUSCH-AlphaSet configured in the higher layer parameters P0-AlphaSet, or P0 or alpha contained in a P0-PUSCH-AlphaSet corresponding to a first P0-PUSCH-AlphaSet id contained in the higher layer parameters configured grantconfigure. The second open loop power control parameter is a second target power or path loss factor configured by the higher layer signaling, for example, P0 or alpha contained in a second P0-PUSCH-AlphaSet configured in the higher layer parameters P0-AlphaSet, or P0 or alpha contained in a P0-PUSCH-AlphaSet corresponding to a second P0-PUSCH-AlphaSet id contained in the higher layer parameters configured grantconfigure.

In one embodiment, the network device may configure two power control adjustment status indexes (i.e. the values of two l) for PUSCH retransmission through higher layer signaling in advance, where different indexes are used for different PUSCH retransmission. For example, the first index is used for the PUSCH repetition transmission for the odd number of times, and the second index is used for the PUSCH repetition transmission for the even number of times. As shown in fig. 9, the first target power P in the first open loop power control parameter (higher layer signaling configuration _0,0 Or path loss factor alpha 0), the terminal equipment reconfigures the first index (first l, assumed to be l) of the two power control adjustment state indexes ₀ ) The associated power control adjustment state is zeroed, and other power control adjustment states are unaffected. In a second open loop power control parameter (second target power P of higher layer signaling configuration _0,1 Or path loss factor alpha 1) and the terminal equipment adjusts the two power control modesThe second index in the full state index (second l, let l be ₁ ) The associated power control adjustment state is zeroed, and other power control adjustment states are unaffected.

In another embodiment, the first target power P in the first open loop power control parameter (higher layer signaling configuration _0,0 Or path loss factor alpha 0), the terminal equipment resets the power control adjustment state associated with the index of the power control adjustment state as 0 to zero, and other power control adjustment states are not affected. In a second open loop power control parameter (second target power P of higher layer signaling configuration _0,1 Or path loss factor alpha 1), the terminal equipment carries out zero setting on the power control adjustment state associated with the power control adjustment state index 1, and other power control adjustment states are not affected.

In an exemplary embodiment, the terminal device selects two target powers or path loss factors from multiple target powers or path loss factors (i.e., multiple P0-PUSCH-AlphaSets) configured by higher layer signaling (P0-AlphaSets) as two open loop power control parameters and reports the two open loop power control parameters to the network device. And the terminal equipment simultaneously reports the power control adjustment state indexes respectively corresponding to the two open loop power control parameters. When one of the target power or the path loss factor is reconfigured, the terminal equipment only carries out zero setting on the reported power control adjustment state associated with the power control adjustment state index corresponding to the target power or the path loss factor, and other power control adjustment states are not affected.

Alternatively, the method provided in this embodiment is used in the case where the terminal device is configured for closed loop power control in accumulation mode. In addition, the method provided in this embodiment is also used in a case where the network device does not configure the SRI or the PUSCH power control parameter (SRI-PUSCH-PowerControl) associated with the SRI for the terminal device. Further, the method provided in this embodiment may be used only for FR1.

Further, the terminal device may determine the PUSCH transmission power according to the power control adjustment state after the zeroing. For example, the terminal device determines the updated power control adjustment state according to the zeroed power control adjustment state and the TPC command received recently, thereby determining the transmission power of the PUSCH.

Based on the method of the embodiment, the reconfiguration of the open loop power control parameter for certain PUSCH repeated transmission can be ensured to only affect the closed loop power control of the repeated transmission, the closed loop power control of other repeated transmission is not affected, and the PUSCH repeated transmission with different TRPs can be independently controlled.

Referring to fig. 10, a flowchart of an uplink power control method according to another embodiment of the present application is shown. The method can be applied to the terminal equipment of the network architecture shown in fig. 1. The method may include the following steps (1010-1020):

in step 1010, multiple sets of open loop power control parameters are determined, the multiple sets of open loop power control parameters being used for different repeated transmissions of the same PUCCH, respectively, the open loop power control parameters including a target power.

In one example, multiple sets of open loop power control parameters are used for repeated transmission of PUCCH on different time domain resources, respectively. For example, one set of open loop power control parameters is used for repeated transmissions on a portion of the time slots and another set of open loop power control parameters is used for repeated transmissions on other time slots.

In another example, multiple sets of open loop power control parameters are used for repeated transmission of PUCCH on different Panel, respectively. For example, one set of open loop power control parameters is used for repeated transmissions on one Panel and another set of open loop power control parameters is used for repeated transmissions on another Panel.

Alternatively, the path loss measurement reference signals employed by different retransmissions are from different TRPs, thereby indicating that different retransmissions are sent to different TRPs. For example, when the path loss measurement reference signal is SSB (Synchronization Signal and PBCH Block, synchronization signal block), the path loss measurement reference signal used for different repeated transmissions is SSB having different SSB indexes.

In an exemplary embodiment, the network device pre-configures the target power of a Set of PUCCHs through higher layer signaling (e.g., higher layer parameters p 0-Set). For example, higher layer parameters p0-Set comprises one or more P0-PUCCHs, each P0-PUCCH comprises a target power configuration (P0) for obtaining target power P of the PUCCH _{O_PUCCH,b,f,c} (q _u ). The one or more P0-PUCCHs include two target powers for determining the transmit powers of different repeated transmissions of the same PUCCH. Specifically, the two target powers are respectively the target power with the lowest ID and the target power with the next lowest ID, or the target power with the lowest ID and the target power with the highest ID, among the plurality of target powers configured by the higher layer signaling. For example, the two target powers are P0 included in the P0-PUCCH corresponding to the smallest P0-PUCCH-Id and P0 included in the P0-PUCCH corresponding to the next smallest (i.e. second smallest) P0-PUCCH-Id, respectively, which are configured in the higher-layer parameters P0-Set; or P0 contained in P0-PUCCH corresponding to the smallest P0-PUCCH-Id and P0 contained in P0-PUCCH corresponding to the largest P0-PUCCH-Id configured in the higher-layer parameters P0-Set.

Step 1020, under the condition that the target open loop power control parameter is reconfigured, setting zero the target power control adjustment state associated with the power control adjustment state index corresponding to the target open loop power control parameter; wherein the target open loop power control parameter is any one of the plurality of sets of open loop power control parameters.

In an exemplary embodiment, a terminal device receives a plurality of target powers configured by a network device, the plurality of target powers including a first target power and a second target power. The first target power is the target power with the lowest ID among the multiple target powers configured by the higher layer signaling, for example, P0 included in the P0-PUCCH corresponding to the smallest P0-PUCCH-ID configured in the higher layer parameter P0-Set. The second target power is the target power with the ID next lowest or the ID highest among the multiple target powers configured by the higher layer signaling, for example, P0 contained in the P0-PUCCH corresponding to the next smallest P0-PUCCH-ID configured in the higher layer parameter P0-Set, or P0 contained in the P0-PUCCH corresponding to the largest P0-PUCCH-ID.

In an exemplary embodiment, the network device may configure two power control adjustment state indexes (i.e., the values of two l) for PUCCH retransmission through higher layer signaling in advance, wherein different indexes are used for different PUCCH retransmission. For example, the first index is used for an odd number of PUCCH repetition transmissions and the second index is used for an even number of PUCCH repetition transmissions. As shown in fig. 11, the target power P with the lowest ID among the plurality of target powers of the first target power (the target power of the higher layer signaling configuration _0,0 ) When reconfiguration occurs, the terminal device sets the first index (first l, let l be ₀ ) The associated power control adjustment state is zeroed, and other power control adjustment states are unaffected. The second target power (target power P having the next lowest ID or highest ID among the plurality of target powers configured by the higher layer signaling _0,1 ) When reconfiguration occurs, the terminal device adjusts the second index (second l, let l be ₁ ) The associated power control adjustment state is zeroed, and other power control adjustment states are unaffected.

In an exemplary embodiment, the target power P with the lowest ID among the plurality of target powers of the first target power (the target power of the higher layer signaling configuration _0,0 ) When reconfiguration occurs, the terminal equipment sets the power control adjustment state associated with the index of the power control adjustment state as 0 to zero, and other power control adjustment states are not affected. The second target power (target power P having the next lowest ID or highest ID among the plurality of target powers configured by the higher layer signaling _0,1 ) When reconfiguration occurs, the terminal device sets the power control adjustment state associated with the index of the power control adjustment state as 1Zero, the other power control adjustment states are unaffected.

Optionally, the method provided in this embodiment is used in a case where the network device does not configure PUCCH spatial related information (PUCCH-spacial relation info) for the terminal device.

Further, the terminal device may determine the transmit power of the PUCCH according to the power control adjustment state after the zero setting. For example, the terminal device determines an updated power control adjustment state according to the zeroed power control adjustment state and the recently received TPC command, thereby determining the transmit power of the PUCCH.

Based on the method of the embodiment, the reconfiguration of the open loop power control parameter for a certain PUCCH repeated transmission can be ensured to only affect the closed loop power control of the repeated transmission, the closed loop power control of other repeated transmissions can not be affected, and the PUCCH repeated transmission with different TRPs can be independently controlled.

The following are device embodiments of the present application, which may be used to perform method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

Referring to fig. 12, a block diagram of an uplink power control device according to an embodiment of the present application is shown. The device has the function of realizing the method example of the terminal equipment side, and the function can be realized by hardware or can be realized by executing corresponding software by hardware. The device may be the terminal device described above, or may be provided in the terminal device. As shown in fig. 12, the apparatus 1200 may include: a parameter determination module 1210 and a state reset module 1220.

The parameter determining module 1210 is configured to determine multiple sets of open loop power control parameters, where the multiple sets of open loop power control parameters are used for different repeated transmissions of the same uplink signal.

A state resetting module 1220, configured to, in case of reconfiguration of a target open loop power control parameter, zero a target power control adjustment state associated with a power control adjustment state index corresponding to the target open loop power control parameter; wherein the target open loop power control parameter is any one of the plurality of sets of open loop power control parameters.

In an exemplary embodiment, the target open loop power control parameter and the target power control adjustment state are for the same repeated transmission.

In an exemplary embodiment, the terminal device determines a power control adjustment state used for repeated transmission employing the target open loop power control parameter as the target power control adjustment state.

In an exemplary embodiment, the multiple sets of open loop power control parameters are used for repeated transmission of the uplink signal on different time domain resources, or repeated transmission on different frequency domain resources, or repeated transmission on different antenna panels, respectively.

In an exemplary embodiment, the different repeated transmissions employ different precoding vectors or beamforming weights.

In an exemplary embodiment, the path loss measurement reference signals employed by the different repeated transmissions are from different TRPs.

In an exemplary embodiment, the uplink signal is PUSCH or PUCCH.

In an exemplary embodiment, the open loop power control parameter includes a target power and/or a path loss factor.

In an exemplary embodiment, in a case where the uplink signal is PUSCH, the target open loop power control parameter is an i-th set of open loop power control parameters among the multiple sets of open loop power control parameters configured by higher layer signaling, where i is a positive integer. Correspondingly, the power control adjustment state index corresponding to the target open loop power control parameter is the ith power control adjustment state index configured by the high-layer signaling and used for PUSCH repeated transmission; or the value of the power control adjustment state index corresponding to the target open loop power control parameter is i-1.

In an exemplary embodiment, in a case where the uplink signal is a PUCCH, the target open loop power control parameter is a target power with the lowest ID among target powers for PUCCH configured by higher layer signaling. Correspondingly, the power control adjustment state index corresponding to the target open loop power control parameter is the first power control adjustment state index for PUCCH repeated transmission of the high-layer signaling configuration; or, the value of the power control adjustment state index corresponding to the target open loop power control parameter is 0.

In an exemplary embodiment, in a case where the uplink signal is a PUCCH, the target open loop power control parameter is a target power with the ID next lowest or a target power with the ID highest among target powers for PUCCH configured by higher layer signaling. Correspondingly, the power control adjustment state index corresponding to the target open loop power control parameter is the second power control adjustment state index of the high-layer signaling configuration for PUCCH repeated transmission; or, the value of the power control adjustment state index corresponding to the target open loop power control parameter is 1.

In an exemplary embodiment, the target open loop power control parameter is a set of open loop power control parameters selected by the terminal device from the plurality of sets of open loop power control parameters and reported to the network device. Correspondingly, the power control adjustment state index corresponding to the target open loop power control parameter is a power control adjustment state index corresponding to the target open loop power control parameter, which is selected from a plurality of power control adjustment state indexes by the terminal equipment and reported to the network equipment.

In an exemplary embodiment, the method is performed without the network device indicating a beam-related configuration to the terminal device.

It should be noted that, when the apparatus provided in the foregoing embodiment performs the functions thereof, only the division of the respective functional modules is used as an example, in practical application, the foregoing functional allocation may be performed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules, so as to perform all or part of the functions described above.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Referring to fig. 13, a schematic structural diagram of a terminal device 130 according to an embodiment of the present application is shown. The terminal device 130 may include: a processor 131, a receiver 132, a transmitter 133, a memory 134, and a bus 135.

Processor 131 includes one or more processing cores, and processor 131 executes various functional applications and information processing by running software programs and modules.

The receiver 132 and the transmitter 133 may be implemented as one transceiver 136, and the transceiver 136 may be a communication chip.

The memory 134 is coupled to the processor 131 via a bus 135.

The memory 134 may be used for storing a computer program, and the processor 131 is used for executing the computer program to implement the steps executed by the terminal device in the above-described method embodiment.

Further, the memory 134 may be implemented by any type of volatile or nonvolatile storage device, including but not limited to: RAM (Random-Access Memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other solid state Memory technology, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc, high density digital video disc) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices.

In an exemplary embodiment, the processor 131 is configured to determine multiple sets of open loop power control parameters, where the multiple sets of open loop power control parameters are used for different repeated transmissions of the same uplink signal;

the processor 131 is further configured to zero a target power control adjustment state associated with a power control adjustment state index corresponding to a target open loop power control parameter when the target open loop power control parameter is reconfigured;

In an exemplary embodiment, the uplink signal is PUSCH or PUCCH.

The embodiment of the application also provides a computer readable storage medium, wherein the storage medium stores a computer program, and the computer program is used for being executed by a processor of the terminal equipment to realize the uplink power control method.

The embodiment of the application also provides a chip, which comprises a programmable logic circuit and/or program instructions and is used for realizing the uplink power control method when the chip runs on terminal equipment.

The embodiment of the application also provides a computer program product which, when running on a processor of the terminal equipment, causes the terminal equipment to execute the uplink power control method.

Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The foregoing description of the exemplary embodiments of the present application is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the invention.

Claims

1. An uplink power control method, which is applied to a terminal device, includes:

2. The method of claim 1, wherein the target open loop power control parameter and the target power control adjustment state are for the same repeated transmission.

3. The method according to claim 1 or 2, wherein the plurality of sets of open loop power control parameters are used for repeated transmission of the uplink signal on different time domain resources, or on different frequency domain resources, or on different antenna panels, respectively.

4. A method according to any of claims 1 to 3, characterized in that the uplink signal is a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.

5. The method according to any of claims 1 to 4, wherein the open loop power control parameter comprises a target power and/or a path loss factor.

6. The method according to any one of claims 1 to 5, wherein in case the uplink signal is PUSCH, the target open loop power control parameter is an i-th set of open loop power control parameters among the plurality of sets of open loop power control parameters of a higher layer signaling configuration, the i being a positive integer;

the power control adjustment state index corresponding to the target open loop power control parameter is the ith power control adjustment state index configured by the high-layer signaling and used for PUSCH repeated transmission;

or,

and the value of the power control adjustment state index corresponding to the target open loop power control parameter is i-1.

7. The method of any of claims 1-6, wherein the plurality of sets of open loop power control parameters includes a first open loop power control parameter and a second open loop power control parameter, the first open loop power control parameter and the second open loop power control parameter being two different sets of open loop power control parameters;

Under the condition that the first open loop power control parameter is reconfigured, the terminal equipment only sets the power control adjustment state associated with the first power control adjustment state index to zero; wherein the first open loop power control parameter is a first target power or path loss factor of a higher layer signaling configuration; the first power control adjustment state index is the first power control adjustment state index configured by high-level signaling and used for the uplink signal repeated transmission, or the value of the first power control adjustment state index is 0;

under the condition that the second open loop power control parameter is reconfigured, the terminal equipment only sets the power control adjustment state associated with the second power control adjustment state index to zero; wherein the second open loop power control parameter is a second target power or path loss factor of a higher layer signaling configuration; the second power control adjustment state index is a second power control adjustment state index configured by high-layer signaling and used for the uplink signal repeated transmission, or the value of the second power control adjustment state index is 1.

8. The method according to any of claims 1 to 7, wherein the uplink signal is PUSCH, and the plurality of sets of open loop power control parameters are preconfigured by the network device through higher layer parameters p0-AlphaSets in higher layer signaling; which is a kind of Wherein the high-level parameters P0-alpha set comprise one or more P0-PUSCH-alpha set, each P0-PUSCH-alpha set comprises a target power configuration P0 and a path loss factor configuration alpha, which are respectively used for obtaining target power P _{O_PUSCH,b,f,c} (j) And a path loss factor alpha _b,f,c (j) The method comprises the steps of carrying out a first treatment on the surface of the The one or more P0-PUSCH-AlphaSet includes two sets of open loop power control parameters for determining transmission powers of different repeated transmissions of the same PUSCH: a first open loop power control parameter and a second open loop power control parameter; wherein, each P0-PUSCH-alpha set is used for dynamically scheduled PUSCH or pre-scheduled PUSCH;

for dynamically scheduled PUSCH, the first open loop power control parameter is P0 or alpha contained in a first P0-PUSCH-AlphaSet configured in the higher layer parameter P0-AlphaSet, and the second open loop power control parameter is P0 or alpha contained in a second P0-PUSCH-AlphaSet configured in the higher layer parameter P0-AlphaSet;

for the pre-scheduled PUSCH, the first open loop power control parameter is P0 or alpha contained in the P0-PUSCH-AlphaSet corresponding to one P0-PUSCH-AlphaSetId contained in the preset configuration gradtconfigug; the second open loop power control parameter is P0 or alpha contained in P0-PUSCH-AlphaSetId corresponding to another P0-PUSCH-AlphaSetId contained in the prescheduled configuration GrantConfig.

9. The method according to any one of claims 1 to 8, wherein the uplink signal is PUSCH, and the network device configures two power control adjustment status indexes for PUSCH retransmission in advance through higher layer signaling, wherein different indexes are used for different PUSCH retransmission;

when the first open loop power control parameter is reconfigured, the terminal equipment sets the power control adjustment state associated with the first index of the two power control adjustment state indexes to zero, and other power control adjustment states are unchanged; when the second open loop power control parameter is reconfigured, the terminal equipment sets the power control adjustment state associated with the second index of the two power control adjustment state indexes to zero, and other power control adjustment states are unchanged; or alternatively

When the first open loop power control parameter is reconfigured, the terminal equipment sets the power control adjustment state associated with the power control adjustment state index of 0 in the two power control adjustment state indexes to zero, and other power control adjustment states are unchanged; and when the second open loop power control parameter is reconfigured, the terminal equipment sets the power control adjustment state associated with the power control adjustment state index of 1 in the two power control adjustment state indexes to zero, and other power control adjustment states are unchanged.

10. The method according to any of claims 1 to 9, wherein the terminal device is configured with closed loop power control in accumulation mode or wherein the terminal device is not configured with sounding reference signal resource indicator, SRI, or SRI associated PUSCH power control parameters by the network device.

11. A terminal device, characterized in that the terminal device comprises a processor and a memory; the memory is used for storing computer instructions;

the processor being configured to execute the calculator instructions to implement the method of any one of claims 1 to 10.